my BMW 5 Series F10/F11 (2010-2017) power windows stopped working, what should I check

BMW 5 Series F10/F11 (2010-2017)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

617 words

Problem Statement

The power windows on a BMW 5 Series F10/F11 (2010-2017) are non-functional, indicating a potential electrical or mechanical issue affecting the window operation.

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent short circuits.
•Allow the vehicle to cool down before working on mechanical components.

Symptoms

•Power window switches do not respond when pressed.
•Windows remain in the closed position and cannot be opened.
•No sound of the window motor activating when the switch is pressed.
•Possible simultaneous malfunction of multiple windows.
•Windows may work intermittently before failing completely.

Diagnostic Steps

1
Inspect the fuse related to the power windows using the vehicle's fuse box diagram.
2
Use an OBD-II scanner to check for any related error codes in the body control module.
3
Test the power window switches for continuity using a multimeter.
4
Check the wiring harness for any visible damage or loose connections.
5
Verify the operation of the window motor by applying direct battery power to it.
6
Inspect the window regulator for any mechanical failures or obstructions.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Multimeter
•Trim removal tool
•Socket set
•Screwdrivers

Parts Required

•Power window switch (if faulty)
•Window motor (if faulty)
•Window regulator (if faulty)
•Fuses (as needed)

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Symptoms

•Power window switches do not respond when pressed.

•Windows remain in the closed position and cannot be opened.

•No sound of the window motor activating when the switch is pressed.

•Possible simultaneous malfunction of multiple windows.

•Windows may work intermittently before failing completely.

Diagnostic Steps

1
Inspect the fuse related to the power windows using the vehicle's fuse box diagram.
2
Use an OBD-II scanner to check for any related error codes in the body control module.
3
Test the power window switches for continuity using a multimeter.
4
Check the wiring harness for any visible damage or loose connections.
5
Verify the operation of the window motor by applying direct battery power to it.
6
Inspect the window regulator for any mechanical failures or obstructions.

Solution

1. Preparation

Gather necessary tools and parts for the repair.
Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Fuse

Locate the fuse box: Refer to the owner's manual for the exact location.
Inspect the fuse: Remove the fuse for the power windows and check for continuity using a multimeter.
Replace if blown: If the fuse is blown, replace it with a new fuse of the same amperage.

3. Test and Replace Power Window Switch

Remove the door panel: Use a trim tool to gently pry away the door panel, taking care not to break any clips.
Access the switch: Disconnect the electrical connector from the power window switch.
Test the switch: Use a multimeter to check for continuity when the switch is pressed.
Replace the switch: If it fails the continuity test, install a new switch by reversing the removal steps.

4. Inspect Wiring and Connectors

Visual inspection: Look for any frayed or damaged wires in the door harness.
Repair as needed: If any damage is found, splice in new wire sections or replace the entire harness if necessary.

5. Test Window Motor

Access the window motor: Remove the door panel as described earlier.
Disconnect the motor: Remove the electrical connector from the window motor.
Test the motor: Connect the motor directly to the car battery (positive to positive, negative to negative) to check for operation.
Replace if faulty: If the motor does not operate, replace it with a new one.

6. Inspect and Replace Window Regulator

Remove the old regulator: If the window motor is operational but the window does not move, check the regulator mechanism.
Install new regulator: Follow manufacturer guidelines to install the new window regulator, ensuring all bolts are tightened to manufacturer specifications.